EP2922210A1 - Améliorations apportées et relatives à des appareils de communication mobile de transmission sans fil - Google Patents

Améliorations apportées et relatives à des appareils de communication mobile de transmission sans fil Download PDF

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Publication number
EP2922210A1
EP2922210A1 EP15152629.0A EP15152629A EP2922210A1 EP 2922210 A1 EP2922210 A1 EP 2922210A1 EP 15152629 A EP15152629 A EP 15152629A EP 2922210 A1 EP2922210 A1 EP 2922210A1
Authority
EP
European Patent Office
Prior art keywords
unit
mobile communication
wireless transmission
inductor
transmission mobile
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP15152629.0A
Other languages
German (de)
English (en)
Inventor
John Norrish
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
McMurdo Ltd
Original Assignee
Orolia Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Orolia Ltd filed Critical Orolia Ltd
Publication of EP2922210A1 publication Critical patent/EP2922210A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/0264—Arrangements for coupling to transmission lines
    • H04L25/0278—Arrangements for impedance matching
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/02—Transmitters
    • H04B1/03—Constructional details, e.g. casings, housings
    • H04B1/034—Portable transmitters
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S1/00—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith
    • G01S1/02—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith using radio waves
    • G01S1/68—Marker, boundary, call-sign, or like beacons transmitting signals not carrying directional information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/02—Transmitters
    • H04B1/03—Constructional details, e.g. casings, housings
    • H04B1/034—Portable transmitters
    • H04B1/0343—Portable transmitters to be carried on the body
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/02—Transmitters
    • H04B1/04—Circuits
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B25/00—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
    • G08B25/01—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium
    • G08B25/016—Personal emergency signalling and security systems

Definitions

  • the present invention relates to wireless transmission mobile communication apparatuses.
  • the present invention is particularly concerned with personal portable emergency radio beacons (PPERB's), which are typically deployed by personnel engaged in hazardous outdoor activities such as mountaineering, sailing, mountain biking, skiing, etc. If the participant in the outdoor activity encounters difficulty, the PPERB can be used to alert rescue services. When activated, the PPERB's use wireless communications to transmit a message to a rescue centre. The message typically contains the location of the PPERB device.
  • PPERB's personal portable emergency radio beacons
  • a PPERB device is generally worn by an individual.
  • a transmitter unit 4 containing the radio frequency (RF) circuitry for an antenna 6; a power supply unit 8; a control unit 10 and a connecting cable 12 between the transmitter unit 4 and the power supply unit 8.
  • RF radio frequency
  • the transmitter unit contains an antenna matching function to match the antenna impedance to the effective impedance of the rest of the PPERB device, the distributed system, which acts as a counterpoise to the antenna.
  • the distributed system acts as a counterpoise to the antenna.
  • a wireless transmission mobile communication apparatus comprising a power supply unit; a transmitter unit, comprising an antenna, which transmitter unit is powered by the power supply unit; a control unit configured to control the operation of the apparatus; and an RF isolating unit.
  • the RF isolating unit is between the transmitter unit and the power supply unit.
  • the isolating unit is at an interface between the transmitter unit and the connecting cable.
  • the isolating unit comprises a plurality of inductors.
  • the isolating unit comprises a first inductor and a second inductor, wherein the first inductor is located between the connecting cable and the RF transmitter, and the second inductor is located between connecting cable and the RF transmitter.
  • the first inductor is rated between 1-40 ⁇ H, and more suitably between 5-20 ⁇ H.
  • the second inductor is rated between 1-40 ⁇ H, and more suitably between 5-20 ⁇ H.
  • the apparatus is a personal portable emergency radio beacon.
  • At least some of the example embodiments described herein may be constructed, partially or wholly, using dedicated special-purpose hardware.
  • Terms such as 'component', 'module' or 'unit' used herein may include, but are not limited to, a hardware device, such as circuitry in the form of discrete or integrated components, a Field Programmable Gate Array (FPGA) or Application Specific Integrated Circuit (ASIC), which performs certain tasks or provides the associated functionality.
  • FPGA Field Programmable Gate Array
  • ASIC Application Specific Integrated Circuit
  • the described elements may be configured to reside on a tangible, persistent, addressable storage medium and may be configured to execute on one or more processors.
  • These functional elements may in some embodiments include, by way of example, components, such as software components, object-oriented software components, class components and task components, processes, functions, attributes, procedures, subroutines, segments of program code, drivers, firmware, microcode, circuitry, data, databases, data structures, tables, arrays, and variables.
  • components such as software components, object-oriented software components, class components and task components, processes, functions, attributes, procedures, subroutines, segments of program code, drivers, firmware, microcode, circuitry, data, databases, data structures, tables, arrays, and variables.
  • components such as software components, object-oriented software components, class components and task components, processes, functions, attributes, procedures, subroutines, segments of program code, drivers, firmware, microcode, circuitry, data, databases, data structures, tables, arrays, and variables.
  • a PPERB 20 comprising a transmitter unit 22 containing the radio frequency (RF) circuitry 24 for a RF antenna 26; an antenna matching circuit 28 and a counterpoise isolator 30.
  • the counterpoise isolator 30 is an RF isolating unit.
  • the PPERB 20 additionally comprises a connecting cable 32 between the transmitter unit 22 and a power supply unit 34 and control unit 36.
  • Connecting cable 32 consists of a power in line 32a, a power return line 32b, a data in line 32c and a data out line 32d.
  • Power in line 32a and a power return line 32b run from the power supply unit 34 and the transmitter unit 22.
  • Data in line 32c and data out line 32d run from the control unit 36 to the transmitter unit 22.
  • the counterpoise isolator 30 is located at the interface between the transmitter 22 and the connecting cable 32.
  • the counterpoise isolator 30 comprises a first inductor L1 between the power lines 32a and 32b and the RF circuitry of the transmitter 22.
  • the first inductor L1 is typically rated between 1-40 ⁇ H and preferably 5-20 ⁇ H.
  • the counterpoise isolator further comprises a second inductor L2 between the data lines 30c and 30d and the RF circuitry of the transmitter 22.
  • the second inductor L2 is typically rated between 1-40 ⁇ H and preferably 5-20 ⁇ H.
  • the first inductor L1 and the second inductor L2 provide the counterpoise isolation. This enables the antenna matching circuitry to better balance the antenna impedance in use even though the distributed system may vary the antenna counterpoise.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Power Engineering (AREA)
  • Transmitters (AREA)
EP15152629.0A 2014-03-18 2015-01-27 Améliorations apportées et relatives à des appareils de communication mobile de transmission sans fil Withdrawn EP2922210A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1404858.1A GB2524271B (en) 2014-03-18 2014-03-18 Improvements in and relating to wireless transmission mobile communication apparatuses

Publications (1)

Publication Number Publication Date
EP2922210A1 true EP2922210A1 (fr) 2015-09-23

Family

ID=50634990

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15152629.0A Withdrawn EP2922210A1 (fr) 2014-03-18 2015-01-27 Améliorations apportées et relatives à des appareils de communication mobile de transmission sans fil

Country Status (3)

Country Link
US (1) US20150270991A1 (fr)
EP (1) EP2922210A1 (fr)
GB (1) GB2524271B (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6671494B1 (en) * 1998-06-18 2003-12-30 Competive Technologies, Inc. Small, battery operated RF transmitter for portable audio devices for use with headphones with RF receiver
US20090252348A1 (en) * 2006-05-17 2009-10-08 Aerielle Technologies, Inc Antenna implementations in interconnecting cables
EP2144376A1 (fr) * 2006-02-15 2010-01-13 Palm, Inc. Terminal mobile

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002287832A (ja) * 2001-03-27 2002-10-04 Sharp Corp 送信装置
US8543008B2 (en) * 2005-03-01 2013-09-24 Alexander I Soto System and method for a subscriber powered network element
EP1950883A1 (fr) * 2007-01-25 2008-07-30 Research In Motion Limited Système et procédé de filtrage des harmoniques d'un amplificateur de puissance
US8233846B2 (en) * 2009-02-26 2012-07-31 Broadcom Corporation Configurable transceiver and methods for use therewith

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6671494B1 (en) * 1998-06-18 2003-12-30 Competive Technologies, Inc. Small, battery operated RF transmitter for portable audio devices for use with headphones with RF receiver
EP2144376A1 (fr) * 2006-02-15 2010-01-13 Palm, Inc. Terminal mobile
US20090252348A1 (en) * 2006-05-17 2009-10-08 Aerielle Technologies, Inc Antenna implementations in interconnecting cables

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
GRIFFIN TECHNOLOGY: "iTrip Manual", 31 December 2005 (2005-12-31), XP055204404, Retrieved from the Internet <URL:http://griffintechnology.com/sites/default/files/iTrip_Manual_1_0_0.pdf> [retrieved on 20150723] *

Also Published As

Publication number Publication date
GB2524271B (en) 2016-04-27
GB2524271A (en) 2015-09-23
GB201404858D0 (en) 2014-04-30
US20150270991A1 (en) 2015-09-24

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